Trap or siphon for drains or the like.



No. 659,42. Patnted Oct. ,9, I900. w. KESSELRING & E; RUTHENBACHER.

' TRAP 0R SIPHUN FUR BRAINS OR THE LIKE.

(Application filed Feb. 12, 1900.

(Nb Modal.)

Urrn YATES ATENT OFFICE.

WVILHELM KESSELR-ING AND EMIL RGTHENBACHER, OF STRASBURG, GERMANY.

TRAP OR SIPHON FOR DRAINS OR THE LIKE.

QPECIFICATION forming part of Letters Patent N 0. 659,481, dated October9, 1 900. Application filed February 12, 1900. Serial No. 4,893. \Nomodel.)

To (ti/Z whom it inn/y concern.-

lie it known that we, WILHELM KESSEL- RING and EMIL RoTHENBAoHER,contractors, subjects of the Emperor of Germany, residing at 35Schiffleutstaden, Strasburg, in the Empire of Germany, have inventedcertain new and useful Improvements in Traps or Siphons for Drains orthe Like, of which the following is a specification.

This invention relates to intercepting traps or siphons for drains orthe like, the object being to provide a device for preventing the waterconstituting the joint from being drawn out of the trap by suction; andit consists, essentially, in providing a passage Within the trap betweenthe inlet-chamber and the widened outlet-chamber, which passage is incommunication, on the one hand, with the lower portion of theinlet-chamber, the distance of its mouth from the bottom of the trapbeing approximately equal to the width of the inlet-chamber, and, on theother hand, with the outlet-chamber and above the discharge-levelthereof. This passage places the upper portion of the outlet-chamber incommunication with the atmosphere when the quantity of water in theoutlet-chamber exceeds the quantity in the inlet-chamber, the effect ofthis being that the pressure of the air produces a cessation of thesiphon action before water is withdrawn from the trap by suction to suchan extent as to prevent an efficient water joint from being againformed.

In order that our invention may be readily understood and carried intoeffect, we will describe the same more fully, reference being made tothe accompanying drawings, in which- Figure 1 represents a verticalsectionhers is arranged a passage 1), which communicates at its lowerportion with the chambera and at its upper portion with the chamber 0.The lower orifice of this passage is separated from the bottom of thetrap bya space approximately equal to the width of the chamber a, whilethe upper orifice is situated above the level of the discharge-orificefrom the chamber 0.

From the upper wall of the trap a tongue or plate 61 extends within thechamber 0, and at the highest and lowest points of the trap are providedapertures e e, which permitof ready access to the'inner parts for thepurpose of cleansing or the like and adapted to be closed by suitablescrew-covers or the like.

Vhen the siphon is filled to such an extent as to cause the chamber 0 tooverflow and the water contained in the siphon is sucked out or placedin movement owing to a sudden fall of water in the down-pipe or througha drain situated at a lower level or through the sudden ad mission of alarge quantity of water into the drain itself, the water leaves the trapuntil air is able to enter through the passage b, whereupon the siphonaction ceases. By this improved construction a sufficient quantity ofwater always remains in the chamber 0 to form an eflicientwater joint inthe siphon when the water has again come to rest. Hence the provision ofspecial air-pipes is rendered unnecessary. The tongue or plate (1 servesan important purpose, as it directs or diverts the water which owing torepeated suction is sucked from the chamber a through the passageb intothe chamber 0, whereas it would otherwise for the greater part becarried into the outletpassage.

What we claim, and desire to secure by Letters Patent of the UnitedStates, is

1. In a trap or siphon for drains or the like, a casing, aninlet-chamber therefor, a widened outlet-chamber in communication Withthe lower portion of said inlet-chamber, and a passage intermediate saidinlet and outlet chambers, and communicating at its lower portion withsaid inlet-chamber and at its upper portion with said outlet-chamber,the lower orifice of said passage being separated from the bottom ofsaid casing by a space substantially equal to the width of saidinletchamber, while the upper orifice of said passage is situated abovethe level of the discharge-orifice of said outlet-chamber.

2. In a trap or siphon for drains or the like, a casing, aninlet-chamber therefor, a widened outlet-chamber in communication withthe lower portion of said inlet-chamber, and a passage intermediate saidinlet and outlet chambers, and communicating at its lower portion withsaid inlet-chamber and at its upper portion with said outlet-chamber,the lower orifice of said passage being separated from the bottom ofsaid casing by a space substantially equal to the width of saidinletchamber, while the upper orifice of said passage is situated abovethe level of the discharge-orifice of said outlet-chamber, incombination with a plate depending from the top of said easing into saidoutlet-chamber, apertures at the upper and lower portions of saidcasing, and closures for said apertures.

In testimony whereof we have hereunto set our hands, in presence of twosubscribing witnesses, this 15th day of January, 1900.

WILHELM KESSELRING. EMlL ROTHEN BACHER.

Witnesses ALEXANDER NVooD, MAX ADLER.

